/**
 * Copyright (C) 2011 Angelo Zerr <angelo.zerr@gmail.com> and Pascal Leclercq <pascal.leclercq@gmail.com>
 *
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package org.odftoolkit.odfdom.converter.internal.itext.stylable;

import java.awt.Color;

import org.odftoolkit.odfdom.converter.internal.itext.styles.Style;
import org.odftoolkit.odfdom.converter.internal.itext.styles.StyleParagraphProperties;
import org.odftoolkit.odfdom.converter.internal.itext.styles.StyleTextProperties;

import com.lowagie.text.Element;
import com.lowagie.text.Font;
import com.lowagie.text.Paragraph;

import fr.opensagres.xdocreport.itext.extension.ExtendedParagraph;

/**
 * fixes for paragraph pdf conversion by Leszek Piotrowicz <leszekp@safe-mail.net>
 */
public class StylableParagraph extends ExtendedParagraph implements
        IStylableContainer {

    private static final long serialVersionUID = 664309269352903329L;
    private static final float DEFAULT_LINE_HEIGHT = 1.15f;
    
    private final StylableDocument ownerDocument;
    private IStylableContainer parent;
    private Style lastStyleApplied = null;

    public StylableParagraph(StylableDocument ownerDocument,
            IStylableContainer parent) {
        super();
        this.ownerDocument = ownerDocument;
        this.parent = parent;
        super.setMultipliedLeading(DEFAULT_LINE_HEIGHT);
    }

    public StylableParagraph(StylableDocument ownerDocument, Paragraph title,
            IStylableContainer parent) {
        super(title);
        this.ownerDocument = ownerDocument;
        this.parent = parent;
        super.setMultipliedLeading(DEFAULT_LINE_HEIGHT);
    }

    public void addElement(Element element) {
        super.add(element);
    }

    public void applyStyles(Style style) {
        this.lastStyleApplied = style;

        StyleTextProperties textProperties = style.getTextProperties();
        if (textProperties != null) {
            // Font
            Font font = textProperties.getFont();
            if (font != null) {
                super.setFont(font);
            }
        }

        StyleParagraphProperties paragraphProperties = style.getParagraphProperties();
        if (paragraphProperties != null) {

            boolean breakBeforePage = paragraphProperties.isBreakBeforePage();
            if (breakBeforePage) {
                ownerDocument.newPage();
            }

            // alignment
            int alignment = paragraphProperties.getAlignment();
            if (alignment != Element.ALIGN_UNDEFINED) {
                super.setAlignment(alignment);
            }

            // paragraph indentation
            Float margin = paragraphProperties.getMargin();
            if (margin != null) {
                super.setIndentationLeft(margin);
                super.setIndentationRight(margin);
                super.setSpacingBefore(margin);
                super.setSpacingAfter(margin);
            }
            Float marginLeft = paragraphProperties.getMarginLeft();
            if (marginLeft != null) {
                super.setIndentationLeft(marginLeft);
            }
            Float marginRight = paragraphProperties.getMarginRight();
            if (marginRight != null) {
                super.setIndentationRight(marginRight);
            }
            Float marginTop = paragraphProperties.getMarginTop();
            if (marginTop != null) {
                super.setSpacingBefore(marginTop);
            }
            Float marginBottom = paragraphProperties.getMarginBottom();
            if (marginBottom != null) {
                super.setSpacingAfter(marginBottom);
            }

            // first line indentation
            boolean autoTextIndent = paragraphProperties.isAutoTextIndent();
            if (autoTextIndent) {
                float fontSize = font != null ? font.getCalculatedSize() : Font.DEFAULTSIZE;
                super.setFirstLineIndent(1.3f * fontSize);
            } else {
                Float textIndent = paragraphProperties.getTextIndent();
                if (textIndent != null) {
                    super.setFirstLineIndent(textIndent);
                }
            }

            // line height
            Float lineHeight = paragraphProperties.getLineHeight();
            if (lineHeight != null) {
                boolean lineHeightProportional = paragraphProperties.isLineHeightProportional();
                if (lineHeightProportional) {
                    super.setMultipliedLeading(lineHeight);
                } else {
                    super.setLeading(lineHeight);
                }
            }

            // keep together on the same page
            boolean keepTogether = paragraphProperties.isKeepTogether();
            super.setKeepTogether(keepTogether);

            Color backgroundColor = paragraphProperties.getBackgroundColor();
            if (backgroundColor != null) {
                super.getPdfPCell().setBackgroundColor(backgroundColor);
            }
        }

    }

    public Style getLastStyleApplied() {
        return lastStyleApplied;
    }

    public IStylableContainer getParent() {
        return parent;
    }

    public StylableDocument getOwnerDocument() {
        return ownerDocument;
    }

    public Element getElement() {
        return this;// super.getContainer();
    }
}
